Rich,
When FR was doing the upgrades to the air bags, tires and front axle to the heavier duty ones, I was asking them about doing the upgrade to my '08. They told me that it wouldn't be necessary because I didn't have tile floors. If I did have tile, that would have added 800 lbs to my coach. That is where I got that number from and why I thought that might be the difference.

My understanding of the overweight issue is it was caused by the tile floor estimated at over 1000 lbs plus the addition of def adding another 1000 lbs(I always questioned that as it is mostly on the rear axle). The four door fridge add more weight. The RB model was most affected on the front axle because of the configuration. Front axle or not all this took away cargo capacity.
All the yellow stickers are wrong IMO. I wouldn't get to wound up about them until I got the MH weighted.

I definitely believe that number Tom. Forest River gives some spare tiles for any future needs when you buy the coach and they are really heavy. I love the tile for its ease of cleaning, but the weight is definitely a price to pay in carrying capacity. But I'm usually not overweight as long as I keep my beer drinking regulated